Watch-case



(No Modem D. OHARA.

WATCHl CASE.

No. 309,354. Patented Deo. 16,. 18M.

Inval-Fmr Maf/b@ UNITED STATES PATENT OFFICE..

DANIEL OHARA, OF VALTHAM, MASSACHUSETTS.

WATCH-CAS E.

SPECIFCATON forming part of Letters Patent No. SOSEe, dated December 16, 1884,

Application tiled Juno 7, 1834.

T0 all whom t may concern,.-

Be it known that I, DANIEL OHitnii, of Valtham, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in NVatcltGases, of which the following is a full, clear, and exact description.

rlhis invention, in substance, consists, first, of a ring or band to contain the movement arranged therein inthe usual er in any other suitable manner, and of a central shell or body or annulus closed on all its l'our sides and Walls and surrounding by its inner wall the watch-movement, and provided at its back and front walls with risers, or otherwise suitably constructed for the attachment of a front bezel-ring, a back bezel-ring, a back cap or plate, and such other parts of the case as are or may be desired to complete it for the purpose intended.

It also, in substance, consists, second, of a ring er band to contain the movement arranged therein in the usual or in any other suitable manner, and of a central. shell or body or annulus, either one or both, suitably constructed i'or the attachment ot` the other parts of the case as are or may be desired to complete it 'for the purpose intended, in combination with a bezel-ring constructed ior the attachment of two crystals, one located inside of the other, leaving an iuclosed airspace between.

It also, in substance, consists, third, of a ring or band to contain the movement arranged therein in the usual way or in any other suitable manner, and ol' a central shell or body or annulus, either one or beth, suitably constructed for the attachment ol the other parts of the case as are or may be desired to complete it for the purpose intended, in combination with a cap or plate constructed with double walls having an inclosed air-space between.

It also, in substance, consists, fourth, of a ring or band to contain the movement arranged therein in the usual or in any other suitable manner, and of a chambered central shell or body or annulus, either one or both, suitably constructed for the attachment of the other parts of the case as are or may be desired to complete it i`or the purposes intended, in combination with a winding-stem which passes through the pendant and the annulus (No model.)

and mo\'enient-ring to the watch-movement within said ring, and is surrounded within the chamber ot' the annulus by a wall thereof, which makes a bearing for said stem and closes the chamber of the shell to the entrance ot dust and moisture thereto and to the movement.

The iigures of the accompanying plate of drawings, i'orming a part ol" the specification, illustrate the present invention, and they are all in a similarly enlarged scale.

Figure l is in part a central transverse section and in part an edge view of a watcli-case with the movement removed. Figs. 2 to 9, both inclusive, are sectional views at one side only of a watclrcase, and they are allin illustration of the construction of the central shell or annulus and movement ring or band in accordance with this invention, as heretofore stated; and Fig. l0 is a sectional view in detail through the pendant and winding-stem and a portion of the watch-case at such stem, illustrating more particularly the fourth feature ot' this invention, as before stated.

In the drawings, A is the band or ring to contain the watch-movement. B is the central shell or annulus or body. C is the front bezelring, and D its crystal. E is the back bezel ring, and Fits crystal. G is the back cap or plate.

rlhc movement band or ring A interior-ly is adapted in any ot' the usual ways, or in any other suitable way, ior receiving and securing the watch-movement. (Not represented in the drawings.) This ring A exteriorly is surrounded by the central shell or body, B, pre1"- crab] y made with a recess or chamber, J; but it may be made solid, or nearly so, using an inferior or baser metal-such as alabata, nickel, brass, or other metal or material-for the inner and unexposed portions thereof, and for its exposed sides or surfaces silver, gold, or other precious metal or suitable materia-l.

riDhe annulus B and movement-ring A are either made ot' one piece of metal or of other suitable material, or of separate pieces of the same metal, or ol' diiterent metals or materials, secured together by solder or otherwise in any manner, and all so that the same together shall constitute one piece closed on all its t'onr sides, and walls a., b, c, and d, surrounding by its inner side or wall the watchsmovement, and at its lront and baci; sides or walls, a c, provided IOO with risers K Ii, or otherwise suitably constructed for the attachment of a front bezelring, C, and a back bezel-ring, E, a back cap or plate, G, and such other parts of the case as may be desired to attach, to complete it for the purpose intended.

The olie-piece annulus B and movementring A in Fig. l are shown as provided with risers interiorly screw-threaded for the attachment of a front bezel-ring, G, and a back cap or plate, in Figs. 2 and 8 as provided with an interiorly-screwthreaded riser for the attachment of the back cap or plate and an eXteriorly-screw-threaded riser for the attachment of the front bezel-ring; in Figs. 3, 4, and. 7 as provided with exteriorlyscrew-threaded risers for the attachment of the front bezelring, C, and the back cap or plate, G; in Fig. 5 as provided with risers exteriorly screwthreaded for the attachment of the front bezelring, and interior-ly screw-threaded for the attachment of the back cap or plate; and also the ring is exteriorly screwthreaded for the attachment ofthe back bezel-ring, E, and the construction shown in Fig. 6 differs from that of Fig. 5 in this respect, that thebaek bezel-ring is dispensed with and the back cap or plate, G, substituted therefor, thus dispensing with the riser for the back plate or cap.

In Fig. 9 the back cap or/plate, G, isscrewed over the outside of a riser at the back side of the annulus or ring B, and the front bezel is snapped upon the front side of the annulus, or attached thereto by a hinge.

Figs. 3 and 6 show the back cap or plate, G, as made of double walls M N, having a closed air-space, I), between, and Figs. 3 and 7 show the front bezel-ring, C, as made for receiving two separate crystals, D D2, one inside of the other, and having a closed airspace, Q, between.

In Fig. 10, R is the pendant-knob, and S is the pendant-ring, of the watch-case. I is a stem'passing through the pendant-knob, annulus B, and movement-ring A to the watchmovement within said ring, which stem of itself and in its connection with the movement is a construction arranged for the winding of the watch-movementin any of the usual ways.

II is a wall in the chamber .I of the annulus, which surrounds the winding-stem T, and makes a bearing therefor, wholly closing said chamber about said stein, and thus stopping all communication for dust, moisture, and air to enter said chamber, and also assisting to still further prevent the possibility of air, dust, and moisture from passing to the movement along the tubular bearing between the outside of the watch-case and the movement.

Leaving an air-space, J, in the back cap or plate, G, which may be also applied to afront cap or plate, and using two crystals, with an air-space between, together with a chambered annulus, separately and together tend to assist in reducing the liability of the movement being affected by heat or cold or magnetic or electric influences and forces or currents.

The attachment of the pendent ring S as heretofore made has been by hanging it at each end in sockets or recesses at each side of the pendent knob, whereby, as well known, said ring is susceptible of being wrenched or drawn out of its said bearings with comparative ease by thieves. To obviate this said ring is provided with eyes or loops f, and these eyes suspended from eye-pieces g, attached to each side of the pendent knob It.

The pendent ring may be made in various forms and various ways-as, for instance, either as particularly shown, or in the form of a crossbar connected at each end by one or more links to the eyes of the knob, or in the forni of a series of links in the form of a chain.

Having thus described my invention, what I claim, and desire to secure by Letters Iatent, is-

l. In awatclrcase, a movement band or ring, A, and a central shell or annulus, B, made as one piece, and closed in the four sides a I) cd, and constructed for the attachment of other parts of the case, substantially as described, for the purpose specified.

2. In a watclrcase, a movement band or ring, A, and a central shell or annulus, B, in combination with a bezel-ring constructed for the attachment of two crystals, having a closed air-space between them, substantially as described, for the purpose specified.

3. In a watch-case, a movement band or ring, A, and a central shell or annulus, in combination with a capplate constructed with double walls and an inclosed air-space, I, substantially as described, for the purpose specified.

4. In awatch-case, a movement band or ring, A, and a central shell or annulus, in combination with a bezelring constructed for the attachment of two crystals, leaving a closed air-s )ace between, and with a cap or plate constructed with double walls and an inclosed air-space, substantially as described, for the purpose specified.

5. In a watch-case, a movement band or ring, A, made as one piece, and a chambered central shell or annulus, B, closed on the four sides a b c d, and suitably constructed for the attachment of the parts of the case, in combination with the pendant winding-stein T, andthe wall or bearing U therefor of the shell, substantially as described, for the purpose specified.

6. A watch-ease having a pendantring,'S, provided with eyes f, in combination with eyes g on the pendant, substantially as and for the purpose specified.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

DANIEL OHABA. `Witnesses:-

EDwiN W. Buown, WM. S. Burrows IOO 

